CONTENTS. 



PAGE 



Preface v 



Errata and Addenda . . ... viii 



List of Woodcuts . . xv 



List of General Works on Comparative Anatomy and Embryology xxv 



INTRODUCTION 1 



I. On the Nature and Meaning of Comparative Anatomy 1 



II. Development and Structural Plan of the Vertebrate Body 2 



III. Classified List of the Principal Vertebrate Groups 13 



IV. Table showing the Gradual Distribution of the Vertebrata in Time ... 15 



SPECIAL PART. 



A. INTEGUMENT 16 



of Fishes . . 17 



of Amphibians 



of Reptiles .... .20 



of Birds .... 20 



of Mammals 



Mammary Glands 27 



Bibliography 28 



B. SKELETON - - - 30 



I. DERMAL SKELETON . . 30 



II. ENDOSKELETON . 33 



I. VERTEBRAL COLUMN . 33 



of Fishes .34 



of Amphibians . 39 



of Reptiles . 4-J 



of Birds ... 44 



of Mammals 46 



Bibliography .... . 47 



II. RIBS 48 



of Fishes and Dipnoans 48 



of Amphibians .48 



of Reptiles, Birds, and Mammals 4y 



